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qt: fix build with zlib for target

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This contains a few hacks very specific to Qt's buildsystem. These can be
reverted once we split the build between native and target builds.

Qt's build contains a circular dependency when not using a system zlib.
By far the easiest fix is to switch to a system zlib, rather than Qt's own.
However, that confuses Qt's cross build which assumes that when using a system
zlib, it should also find a system (native) zlib for native tools. The build
breaks if that zlib is not present.

To solve this:
1. Always use a system zlib rather than the one provided by qt
2. Set force_bootstrap, which instructs the build tools to be built as though
   we're cross-compiling (build != target)
3. For build tools, use qt's internal zlib so that a native zlib is not
required.

Step 3 means that if any zlib headers are found by the native build, it will
confuse Qt's internal zlib build. So we also need to make sure that the target
headers/libs aren't found. To do so, specify that our
cflags/cxxflags/cppflags/ldflags only apply for non-host builds.
This commit is contained in:
Cory Fields 2017-01-27 12:10:13 -05:00
parent 8efa34fb77
commit b5f374fef7
2 changed files with 13 additions and 10 deletions
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15
depends/packages/qt.mk
View File

@ -140,12 +140,13 @@ define $(package)_preprocess_cmds
patch -p1 < $($(package)_patch_dir)/pidlist_absolute.patch && \
patch -p1 < $($(package)_patch_dir)/fix-xcb-include-order.patch && \
patch -p1 < $($(package)_patch_dir)/fix_qt_pkgconfig.patch && \
echo "QMAKE_CFLAGS += $($(package)_cflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
echo "QMAKE_CXXFLAGS += $($(package)_cxxflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
echo "QMAKE_LFLAGS += $($(package)_ldflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
sed -i.old "s|QMAKE_CFLAGS = |QMAKE_CFLAGS = $($(package)_cflags) $($(package)_cppflags) |" qtbase/mkspecs/win32-g++/qmake.conf && \
sed -i.old "s|QMAKE_LFLAGS = |QMAKE_LFLAGS = $($(package)_ldflags) |" qtbase/mkspecs/win32-g++/qmake.conf && \
sed -i.old "s|QMAKE_CXXFLAGS = |QMAKE_CXXFLAGS = $($(package)_cxxflags) $($(package)_cppflags) |" qtbase/mkspecs/win32-g++/qmake.conf
echo "!host_build: QMAKE_CFLAGS += $($(package)_cflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
echo "!host_build: QMAKE_CXXFLAGS += $($(package)_cxxflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
echo "!host_build: QMAKE_LFLAGS += $($(package)_ldflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
sed -i.old "s|QMAKE_CFLAGS = |!host_build: QMAKE_CFLAGS = $($(package)_cflags) $($(package)_cppflags) |" qtbase/mkspecs/win32-g++/qmake.conf && \
sed -i.old "s|QMAKE_LFLAGS = |!host_build: QMAKE_LFLAGS = $($(package)_ldflags) |" qtbase/mkspecs/win32-g++/qmake.conf && \
sed -i.old "s|QMAKE_CXXFLAGS = |!host_build: QMAKE_CXXFLAGS = $($(package)_cxxflags) $($(package)_cppflags) |" qtbase/mkspecs/win32-g++/qmake.conf
endef
define $(package)_config_cmds
@ -153,6 +154,8 @@ define $(package)_config_cmds
export PKG_CONFIG_LIBDIR=$(host_prefix)/lib/pkgconfig && \
export PKG_CONFIG_PATH=$(host_prefix)/share/pkgconfig && \
./configure $($(package)_config_opts) && \
echo "host_build: QT_CONFIG ~= s/system-zlib/zlib" >> mkspecs/qconfig.pri && \
echo "CONFIG += force_bootstrap" >> mkspecs/qconfig.pri && \
$(MAKE) sub-src-clean && \
cd ../qttranslations && ../qtbase/bin/qmake qttranslations.pro -o Makefile && \
cd translations && ../../qtbase/bin/qmake translations.pro -o Makefile && cd ../.. &&\

8
depends/patches/qt/mac-qmake.conf
View File

@ -14,10 +14,10 @@ QMAKE_MAC_SDK.macosx.Path = $${MAC_SDK_PATH}
QMAKE_MAC_SDK.macosx.platform_name = macosx
QMAKE_MAC_SDK.macosx.SDKVersion = $${MAC_SDK_VERSION}
QMAKE_MAC_SDK.macosx.PlatformPath = /phony
QMAKE_CFLAGS += -target $${MAC_TARGET}
QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_CFLAGS
QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
QMAKE_LFLAGS += -target $${MAC_TARGET} -mlinker-version=$${MAC_LD64_VERSION}
!host_build: QMAKE_CFLAGS += -target $${MAC_TARGET}
!host_build: QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_CFLAGS
!host_build: QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
!host_build: QMAKE_LFLAGS += -target $${MAC_TARGET} -mlinker-version=$${MAC_LD64_VERSION}
QMAKE_AR = $${CROSS_COMPILE}ar cq
QMAKE_RANLIB=$${CROSS_COMPILE}ranlib
QMAKE_LIBTOOL=$${CROSS_COMPILE}libtool